package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.SMSUtils;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("user")
@Slf4j
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private SMSUtils smsUtils;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送手机短信验证码
     *
     * @param user
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) {
        //获取手机号
        String phone = user.getPhone();
        if (StringUtils.isNotEmpty(phone)) {
            //生成随机的4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}", code);

            //调用阿里云提供的短信服务API完成发送短信
            //smsUtils.sendMessage(phone,code);

            //需要将生成的验证码保存到redis
            redisTemplate.opsForValue().set(phone, code,5, TimeUnit.MINUTES);
            return R.success("手机验证码短信发送成功");
        }
        return R.error("短信发送失败");
    }

    /**
     * 用户登录
     *
     * @param map
     * @param session
     * @return
     */
    @PostMapping("login")
    public R<User> login(@RequestBody Map<String, String> map, HttpSession session) {
        //1. 获取用户输入验证码
        String code = map.get("code");

        //2. 获取Session保存的验证码
        String phone = map.get("phone");

        // 从redis获取验证码
        String codeInSession = (String) redisTemplate.opsForValue().get(phone);

        //3. 校验验证码是否一致
        if (codeInSession != null && codeInSession.equals(code)) {
            //3.1 判断该用户是否已注册
            LambdaQueryWrapper<User> lqw = new LambdaQueryWrapper<>();
            lqw.eq(User::getPhone, phone);
            User user = userService.getOne(lqw);

            //3.2 若未注册,保存用户信息
            if (user == null) {
                user = new User();
                user.setPhone(phone);
                user.setStatus(1); // 启用状态
                userService.save(user);
            }

            //3.3 将用户信息保存到Session域中
            session.setAttribute("user", user.getId());

            // 移除redis中验证码
            redisTemplate.delete(phone);
            return R.success(user);
        }

        // 验证码错误
        return R.error("验证码输入有误");
    }
}














